90-5=9x+20

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Solution for 90-5=9x+20 equation:


Simplifying
90 + -5 = 9x + 20

Combine like terms: 90 + -5 = 85
85 = 9x + 20

Reorder the terms:
85 = 20 + 9x

Solving
85 = 20 + 9x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-9x' to each side of the equation.
85 + -9x = 20 + 9x + -9x

Combine like terms: 9x + -9x = 0
85 + -9x = 20 + 0
85 + -9x = 20

Add '-85' to each side of the equation.
85 + -85 + -9x = 20 + -85

Combine like terms: 85 + -85 = 0
0 + -9x = 20 + -85
-9x = 20 + -85

Combine like terms: 20 + -85 = -65
-9x = -65

Divide each side by '-9'.
x = 7.222222222

Simplifying
x = 7.222222222

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